<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
   <h3>添加学生</h3>
    <form action="student/zhangsan/20" method="post">
        <input type="submit" value="注册学生">
    </form>

</body>
</html>